Genuine 40494 Fuel Pump (Vintage Rebuilt)
Restore the fuel delivery system of your classic Pontiac OHC-6 to factory performance standards with this professionally rebuilt mechanical fuel pump. Proudly Made in the USA, this genuine vintage unit is a period-correct component essential for high-quality restorations. By utilizing high-quality original castings, this rebuilt pump maintains the authentic look and rugged durability that modern mass-market replacements often fail to provide, ensuring your overhead-cam engine receives steady, reliable fuel pressure.
This specific model, 40494, is the verified fitment for 1967-1968 Pontiac applications. It is the designated fuel pump for Tempest and Firebird models equipped with the 250 cubic inch inline 6-cylinder engine and a 1-barrel carburetor configuration. This unit serves as the primary replacement for original equipment part number 644 0494 and interchanges with Carter model M4521S. It is engineered to meet the specific operating pressure required for Pontiac's overhead-cam (OHC) 1-barrel fuel systems during the late 1960s.
Note on Stock Photos: Due to our volume of identical, interchangeable inventory, we use representative stock photos for this model. The image is for reference only and may depict a specific manufacturer (e.g., 'AC'). You will receive a pump that meets all listed specifications, which may be from the manufacturer shown or a fully equivalent alternative.
A Note on Fitment Accuracy: We manually research and cross-reference our fitment data using vintage manufacturer catalogs. While we strive for 100% accuracy, these decades-old resources—and the humans reading them—can occasionally contain errors. Additionally, these pumps may fit other vehicles and years not explicitly listed in our data. To ensure a seamless restoration, we kindly ask that you perform your own due diligence and verify that this specific part number is correct for your application prior to purchase.
Key Features:
- Part Number: 40494 (Master 40494M)
- Interchange / Replaces OEM: 644 0494, Carter M4521S
- Position: Engine Mounted
- Engine Fitment: Pontiac 250 CID L6 (OHC-6)
- Carburetor Fitment: 1-Barrel (1-Bbl) Models
- Origin: Made in USA (Vintage Stock)
- Condition: Vintage Rebuilt
Verified Vehicle Fitment:
| Make |
Model / Series |
Year |
Engine |
Notes |
| Pontiac |
Tempest, LeMans |
1967-1968 |
250 L6 (OHC) |
1-Bbl Carburetor Only |
| Pontiac |
Firebird |
1967-1968 |
250 L6 (OHC) |
1-Bbl Carburetor Only |
Fits Years:
1967 1968
Unbeatable Prices & Expectations
We scour the country to find the best deals on NOS and NORS parts so we can pass the savings on to you. Our vintage inventory is acquired from old auto parts stores, warehouses, and private collections. While these parts are unused or professionally rebuilt, their packaging and surfaces may show signs of shelf wear or age due to decades of storage. Rest assured, every part is a genuine piece of automotive history, built to the standards of the era it represents.
